Electric blower internal heat dissipation structure and electric blower

Abstract

The utility model relates to an electric blower internal heat dissipation structure and an electric blower, the electric blower is internally provided with a chamber isolation seat, and one surface of the chamber isolation seat facing the air outlet end of the electric blower is used for installing a fan blade assembly, i.e., a first installation groove and a second installation groove are used for installing a circuit board assembly. A first air inlet notch is formed in the bottom of the first mounting groove, a second air inlet notch is formed in the bottom of the second mounting groove, an air passing hole is formed between the first mounting groove and the second mounting groove, and the first air inlet notch and the second air inlet notch communicate with an air inlet channel of the electric air blowing shell. According to the air conditioner, air entering the second air inlet notch from the first air inlet notch and the second air inlet notch brings heat generated by the circuit board assembly in the second mounting groove into the first mounting groove from the air passing holes and then discharges the heat, and it is guaranteed that in the operation process of the second mounting groove, a cavity formed by the second mounting groove can be at a proper temperature.

Description

Technical Field

[0001] This utility model belongs to the field of electric hair dryer technology, specifically relating to an internal heat dissipation structure and an electric hair dryer. Background Technology

[0002] Currently, hair dryers (also known as hair dryers) are a common household appliance used to quickly dry hair or other items. Existing flat-nozzle hair dryers typically have their air inlet located in the handle, and the electrical components are generally integrated into the tail end of the blower. These electrical components include transistors, which generate a large amount of heat during operation. Since the chamber housing the electrical components lacks an air outlet, the temperature of the chamber rises extremely rapidly. Over prolonged use, this can damage the electrical components within the chamber. Therefore, this solution was developed. Utility Model Content

[0003] In view of the shortcomings of the prior art, the technical problem to be solved by this utility model is to provide an internal heat dissipation structure and a blower that can dissipate heat from the second mounting slot for mounting circuit board assemblies.

[0004] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is: an internal heat dissipation structure for an electric fan, including a chamber isolation seat, the chamber isolation seat having a first mounting groove and a second mounting groove, the first mounting groove and the second mounting groove being blocked by a baffle plate, a shaft end mounting hole being provided in the first mounting groove, a first air inlet notch being formed below the first mounting groove, a second air inlet notch being formed below the second mounting groove, and an air passage hole being formed on the baffle plate.

[0005] Furthermore, a convex shell is formed at the bottom of the first mounting groove, and the shaft end mounting hole is located on the end face of the convex shell.

[0006] Furthermore, the second mounting groove sidewall has multiple spaced notches, and the notches are provided with claws.

[0007] Furthermore, the bottom of the second mounting groove has multiple positioning posts.

[0008] Furthermore, a recess is formed at the bottom of the first mounting groove, and the air passage is located at the bottom of the recess.

[0009] An electric hair dryer includes a hair dryer housing and an internal heat dissipation structure. The hair dryer housing includes a vertical handle end and a horizontal air outlet end. The horizontal air outlet end is connected to the upper end of the vertical handle end. The vertical handle end has an air inlet channel. The chamber isolation seat is disposed in the horizontal air outlet end, and a first air inlet notch and a second air inlet notch are interconnected with the air inlet channel.

[0010] Furthermore, an air intake component is provided inside the vertical gripping end, which is used to draw air into the air intake channel.

[0011] Furthermore, the air intake assembly includes a fan, and the vertical holding end has a fan mounting base. The fan is installed in the fan mounting base, and the bottom of the vertical holding end is provided with multiple air intake holes, which are connected to the air intake channel.

[0012] Furthermore, the transverse air outlet is provided with a fan blade assembly and a circuit board assembly. The fan blade assembly is installed in the first mounting groove and faces the air outlet of the transverse air outlet, and the circuit board assembly is installed in the second mounting groove.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] This utility model discloses an internal heat dissipation structure for a hair dryer and the hair dryer itself. The hair dryer has an internal chamber isolation seat. The side of the chamber isolation seat facing the air outlet of the hair dryer is used to install the fan blade assembly, i.e., the first mounting slot. The second mounting slot is used to install the circuit board assembly. The bottom of the first mounting slot has a first air inlet notch, and the bottom of the second mounting slot has a second air inlet notch. An air passage is provided between the first and second mounting slots. The first and second air inlet notches are connected to the air inlet channel of the hair dryer housing. When air enters the air inlet channel, the air entering the second air inlet notch carries the heat generated by the circuit board assembly in the second mounting slot through the air passage into the first mounting slot and then out, ensuring that the second mounting slot remains at a suitable temperature during operation. Attached Figure Description

[0015] Figure 1 This is a cross-sectional view of the electric fan in this utility model;

[0016] Figure 2 This is a three-dimensional structural diagram of the central chamber isolation seat of this utility model;

[0017] Figure 3 This is a three-dimensional structural diagram of the chamber isolation seat of this utility model from another direction.

[0018] The markings in the diagram are: 1. Electric fan housing; 11. Vertical gripping end; 12. Horizontal air outlet end; 2. Chamber isolation seat; 21. First mounting groove; 211. First air inlet notch; 22. Second mounting groove; 221. Second air inlet notch; 23. Protruding shell; 231. Shaft end mounting hole; 24. Recess; 241. Air passage hole; 25. Positioning post; 26. Claw; 3. Circuit board assembly; 4. Fan blade assembly; 5. Fan. Detailed Implementation

[0019] To make the above-mentioned features and advantages of this utility model more apparent and understandable, specific embodiments are described below in conjunction with the accompanying drawings for detailed explanation.

[0020] like Figures 1-3 As shown, this embodiment provides an electric hair dryer, including a hair dryer housing 1 and an internal heat dissipation structure.

[0021] The electric blower housing 1 includes a vertical handle end 11 and a horizontal air outlet end 12. The horizontal air outlet end 12 is connected to the upper end of the vertical handle end 11. The inner cavity of the horizontal air outlet end 12 and the inner cavity of the vertical handle end 11 are interconnected. The vertical handle end 11 has an air inlet channel. Specifically, an air inlet component is provided in the air inlet channel. The air inlet component is used to draw air into the air inlet channel. The air inlet component includes a fan 5. The vertical handle end 11 has a fan 5 mounting base. The fan 5 is installed in the fan 5 mounting base. The bottom of the vertical handle end 11 is provided with multiple air inlet holes, which are connected to the air inlet channel. The fan 5 adopts a high-speed fan 5 commonly used in the prior art, which will not be described in detail here.

[0022] The chamber isolation seat 2 is disposed in the transverse air outlet 12. The chamber isolation seat 2 has a first mounting groove 21 and a second mounting groove 22. The first mounting groove 21 and the second mounting groove 22 are blocked by a baffle plate. A first air inlet notch 211 is formed below the first mounting groove 21, and a second air inlet notch 221 is formed below the second mounting groove 22. An air passage hole 241 is formed on the baffle plate. Specifically, a pit 24 is formed at the bottom of the first mounting groove 21, and the air passage hole 241 is located at the bottom of the pit 24. The first air inlet notch 211 and the second air inlet notch 221 are interconnected with the air inlet channel.

[0023] The first mounting groove 21 is provided with a shaft end mounting hole 231. Preferably, the bottom of the first mounting groove 21 is formed with a convex shell 23. The shaft end mounting hole 231 is located on the end face of the convex shell 23. The fan blade assembly 4 is provided near the air outlet of the transverse air outlet 12. The fan blade assembly 4 is implemented using a fan blade structure commonly used in the prior art, which will not be described in detail here. A connecting hole is provided next to the shaft end mounting hole 231. The fan blade assembly 4 is located at the position of the shaft end mounting hole 231 and is connected to the connecting hole by screws to achieve fixation.

[0024] The bottom of the second mounting groove 22 has multiple positioning posts 25, three of which are arranged in a ring at intervals. The positioning posts 25 function as positioning chamber isolation seats. The side wall of the second mounting groove 22 has multiple spaced notches, each with a locking claw 26 for locking and fixing with the electric blower housing 1. The circuit board assembly 3 is installed in the second mounting groove 22. The circuit board assembly 3 contains a transistor, which dissipates a great deal of heat during operation.

[0025] Working principle: such as Figure 1As shown, the arrows indicate the airflow direction. When the fan 5 rotates, air is drawn into the air intake channel. When the air moves to the chamber isolation seat 2, it splits into two paths: one enters through the first air intake gap 211, and the other enters through the second air intake gap 221. The air entering through the first air intake gap 211 passes through the fan blades and is discharged from the air outlet of the electric blower housing 1. The air entering through the second air intake gap 221 passes through the circuit board assembly 3, absorbs the heat of the circuit board assembly 3, and then enters the first mounting groove 21 through the air intake before being discharged from the air outlet of the electric blower housing 1. This ensures that the circuit board assembly 3 is at a suitable temperature during the operation of the second mounting groove 22.

[0026] The foregoing has shown and described the basic principles and main features of this invention, as well as its advantages. Those skilled in the art should understand that this invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this invention. Various changes and modifications can be made to this invention without departing from its spirit and scope. All such changes and modifications fall within the scope of this invention as defined by the appended claims and their equivalents.

Claims

1. An internal heat dissipation structure for an electric fan, characterized in that: The device includes a chamber isolation seat, which has a first mounting groove and a second mounting groove. The first mounting groove and the second mounting groove are separated by a baffle plate. A shaft end mounting hole is provided in the first mounting groove. A first air inlet notch is formed below the first mounting groove. A second air inlet notch is formed below the second mounting groove. An air passage hole is formed on the baffle plate.

2. The internal heat dissipation structure of an electric fan according to claim 1, characterized in that: The bottom of the first mounting groove has a convex shell, and the shaft end mounting hole is located on the end face of the convex shell.

3. The internal heat dissipation structure of an electric fan according to claim 1, characterized in that: The second mounting groove has multiple spaced notches on its sidewall, and each notch is equipped with a locking claw.

4. The internal heat dissipation structure of an electric fan according to claim 1, characterized in that: The bottom of the second mounting groove has multiple positioning posts.

5. The internal heat dissipation structure of an electric fan according to claim 1, characterized in that: The bottom of the first mounting groove has a recess, and the air passage is located at the bottom of the recess.

6. An electric hair dryer, characterized in that: The device includes a hair dryer housing and an internal heat dissipation structure as described in any one of claims 1-5. The hair dryer housing includes a vertical handle end and a horizontal air outlet end. The horizontal air outlet end is connected to the upper end of the vertical handle end. The vertical handle end has an air inlet channel. The chamber isolation seat is disposed in the horizontal air outlet end, and the first air inlet notch and the second air inlet notch are interconnected with the air inlet channel.

7. The electric hair dryer according to claim 6, characterized in that: An air intake component is provided inside the vertical gripping end, which is used to draw air into the air intake channel.

8. The electric hair dryer according to claim 7, characterized in that: The air intake assembly includes a fan, and the vertical handle has a fan mounting base. The fan is installed in the fan mounting base, and the bottom of the vertical handle has multiple air intake holes, which are connected to the air intake channel.

9. The electric hair dryer according to claim 6, characterized in that: The horizontal air outlet is provided with a fan blade assembly and a circuit board assembly. The fan blade assembly is installed in the first mounting groove and faces the air outlet of the horizontal air outlet, and the circuit board assembly is installed in the second mounting groove.

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